please help me to solve these questions

1) Convert the infix expression (( )^2/ 2)^3 to postfix.

2) Consider the following operations performed on a stack S of size 5:

Push (S, 11); Pop(S) ; Push(S, 2); Push(S, 3); Pop(S); Push(S, 21); Pop(S); Pop(S); Push (S, 7)

Show the state of the stack after each operation.

3) Consider a matrix A of order 5 x 5 where you can store integers of size 4 bytes. Assume index of first element is [0,0] and index of last element is [4,4]. The base address of A is 2036. Find the address of element A[3,2] for the following:

a) Row Major Order Answer

b) Column Major Order